People can develop new varieties of cultivated plants by carrying out a. random breeding for all traits b. selective breeding for all traits c. random breeding for specific traits d. selective breeding for specific traits

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

Why are common names a problem for scientist?

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.